Holiday Oreo Blondie Bars consist of chewy blond brownie bars loaded with Oreo cookies and festive M & M candies. Easy to make in one pan.
Preheat oven to 350 degrees F. Line 8 x 8 inch baking pan with aluminum foil or parchment paper. Lightly grease. Set aside.
2. In medium sized bowl, add melted butter, brown sugar, egg, and vanilla extract. Stir until combined.
3. Add flour and salt to wet ingredients. Stir until combined. Fold in chopped Oreo cookies and 1/4 cup M & M candies.
4. Spread batter into prepared pan. Press remaining M & M candies on top of batter.
5. Bake for 18 to 21 minutes. Edges should be light golden brown and center should be almost completely set. Remove to wire rack to cool for 20 to 30 minutes and then cut into squares.